Abstract: The present invention provides a release agent formed by reacting an organopolysiloxane compound having at least one hydrogen atom with a hydrocarbon compound having at least one double bond which reacts with said hydrogen atom and a manufacturing method thereof.The release agent of this invention, which makes substantially no migration into any pressure sensitive adhesive layer, is well adaptable to whichever process, extrusion laminating process or coating process.

Abstract: A film forming composition including a film forming substance having amphiphilic molecules and being dispersed in a gel-like carrier having a non-liquid state below about 20.degree. C. The carrier stabilizes the film forming substance, and inhibits diffusion of moisture and oxygen into the composition. This minimizes deterioration of the film forming substance, and also minimizes undesirable formation of agglomerations of such substance. When the composition is applied to a surface, an ultra thin substantially continuous film of substantially uniform thickness forms spontaneously and attaches to the surface. The excess composition is then washed away.

Abstract: A process for producing a thermal stencil master sheet for stencil printing, which sheet, even when a thermoplastic film affording superior perforation properties but having low mechanical strengths is used therefor, can prevent the film from being broken to thereby improve its productivity is provided, which process comprises a step of laminating thermoplastic films onto both the surfaces of a base film, a step of bonding porous substrates onto the thermoplastic films and a step of stripping the thermoplastic films bonded to the porous substrates from the base film.

Abstract: An apparatus and method for fabricating integral three-dimensional objects from successive layers of photoformable compositions by exposing the layers of the composition through a detachable flexible transparent film, one side of the film being in contact with the composition and the other side of the film with a rigid transparent plate, which guides and supports the film.

Abstract: The invention relates to an anti-adhesive polyester film comprising polyester film support base having a semicrystalline orientation, which comprises, on at least its surface designed to receive the liquid mass, a coating comprising a fluorine-containing polymer. This application also relates to a method of forming a polyurethane layer onto an adhesive layer and the resulting polyurethane layer.

Abstract: A method is provided for preparation of a fluoro-polymeric film on a carrier, covering:(a) preparing an aqueous dispersion of polymeric material;(b) dipping a fluoropolymer pre-treated carrier belt through the dispersion so that a coating of the dispersion is formed on the carrier belt;(c) passing the coated carrier belt through a metering zone to remove excess dispersion;(d) drying the metered coated carrier to remove the water from the dispersion; and(e) heating the dried coated carrier to a temperature sufficient to consolidate the dispersion. The carrier belt is formed from a material of low thermal mass having chemical and dimensional stability at the consolidation temperature of the dispersion and a work of adhesion between the carrier belt and the dispersion that does not exceed the yield strength of the consolidated fluoropolymeric film.

Abstract: The invention also relates to a process for dressing a flat, water-absorbing and water-permeable substrate having a rough surface with depressions at least on that side to be provided with the dressing.

Abstract: Flakes of a hydrophilic solid organic material, e.g., polyethylene glycol are formed from a melt of said solid organic material on a belt cooler. The process is improved by wetting the belt cooler with water and/or an organic, low molecular weight, hydrophilic liquid to maintain contact between flake and belt during rapid cooling.

Abstract: In a process for dressing a substantially flat substrate having on at least one side a rough surface fibers protruding therefrom, there is first heated a support member, the upper side of which consists of silicone rubber having anti-adhesive properties and comprises small recesses for transmitting a pattern to said dressing, whereupon a first aqueous dispersion of synthetic plastics material is applied onto the upper side of this support member for forming a first layer of the dressing. Subsequently, this support member is heated from the bottom side located opposite the upper side of the support member at least till solidification of the first layer. Subsequently a second aqueous dispersion of synthetic plastics material is applied onto the solidified first layer or onto the rough surface of the substrate, said second dispersion forming a second layer of the dressing when having become solidified.

Abstract: Elastomer structures having exposed controlled surface release characteristics can be made by coating at least a portion of their surface with a releasing composition comprising (a) a chlorosulphonated polymer; (b) a reinforcing filler and (c) a green tackifying agent. Optionally, these compositions can also contain a chemical curing system and one or more volatile solvent/diluent viscosity-reducing vehicle. In a specific example, the coating are applied to flexible structures used in machines for the manufacture of articles having natural tack due to their rubber or elastomer content.

Abstract: A method of constructing a blood flow conduit provided with external inflatable balloons and having rigid end portions for facilitating insertion into blood vessels and means for detecting pulsatile flow in the conduit and excessive pressure in the balloons.

Abstract: Disclosed is a continuous process for replicating interference patterns in radiation curable coating compositions or materials. Radiation curable coatings are brought into contact with interference patterns borne on the surface of an endless belt or revolving drum. The curable coating which may be supported by a substrate or unsupported is irradiated to cure it at least sufficiently so that it can be stripped from the replicating surface.

Abstract: The invention relates to photopolymerizable, sheet-like molding materials containing a mixture of an unsaturated polyester, monomers, a thickener, pulverulent and/or fibrous additives and metal wire inserts. The molding materials can be shaped, for example by pressing or deep-drawing, to give dimensionally staple semi-finished products which are cured to give finished articles. The latter can be employed as automotive components or domestic appliance components.

Abstract: A low temperature method of forming a circuit pattern on a plastic substrate which comprises applying a slurry of a vaporizable solvent, metal particles and a small quantity of binder in the shape of the circuit pattern desired to a removable layer, vaporizing the solvent, covering the powdered metal and binder with an adhesive to hold the powdered metal and carrier in place on the removable layer, laminating the hydrocarbon containing substrate with pressure and heat to cause compacting of said powder and bonding of said compacted powder to said substrate by adhesive layer, said heat being insufficient to destroy said adhesive, substrate and removable layer, and separation of the removable layer. A circuit pattern held on a removable layer by an adhesive overlying same is also disclosed.

Abstract: Disclosed herein is a process for producing a polyphenylene sulfide film, which comprises melt-molding polyphenylene sulfides in a sheet-like form from a die, casting the thus obtained sheet-like form onto a chilled drum on which an adhering liquid has been applied, while closely contacting the sheet-like form with the chilled drum surface by an electrostatic pinning method.

Abstract: The present invention is directed to a process for the continuous production of elongate hollow bodies or inner linings for such hollow bodies, from a liquid material wherein the peripheral surface of a mandrel rotating about a horizontal or slightly inclined shaft is covered with a separating film and the liquid material is applied to said separating film and the resulting hollow body is continuously drawn from the mandrel in the axial direction of the shaft while observing the solidification speed of the material, the improvement wherein the separating film is applied to the mandrel in the axial direction of the shaft and to an apparatus for the use therein.

Abstract: In the present publication a method is described for encapsulating of components (3), in particular of semiconductor components, mounted on a carrier tape (6) by means of a polymer in order to prevent access of moisture into the component (3). According to the invention a polymer film (24, 25) is pressed onto the support area (2) of each component (3) from both sides of the carrier tape (6), and the carrier tape (6) treated in this way is subjected to warm-air blasting (14). Thereupon, an encapsulating tape (9) that has been moistened with polymer (13) and subjected to a warm-air treatment (15) is connected to one side of the carrier tape (6), and the combination tape (6, 9) in this way obtained is heated in a pre-heating oven (16).

Abstract: A process for the fabrication of seamless substrates which comprises (1) providing a substrate with a release coating composition thereover; (2) depositing thereon by electrostatic powder spraying a polymer; (3) melting the polymer blend; and (4) subsequently permitting the melted blend to cool. Thereafter, layered photoconductive imaging members can be prepared by the application, for example, of a ground plane, a photogenerating layer, and a charge transport layer.

Abstract: The present invention relates to a method of manufacturing a release paper characterized in that a mixture of polyolefin and a silicone release agent compatible therewith comprising a reaction product of polymethyl hydrogen siloxane, vinyl group-containing poly-dimethyl siloxane and at least one of olefins or polyolefins having one or more double-bonds is extruded onto a substrate of paper, fabric, film etc., the laminate is heat treated for the release agent contained in the mixed layer of the above-mentioned laminate to bleed onto the surface of the mixed layer to be thus localized and the localized release agent is fixed by curing.The release agent's compatibility with the polyolefin, and this film forming and stretching properties are improved, and since the release agent of high concentration is localized and fixed by curing on the surface of the release agent layer, only a small amount of the release agent is needed.

Abstract: Apparatus and method for extruding and cooling self-adhering elastomeric materials to obtain substantial uniform consistency. This is accomplished by bisurfacially exposing the material to cooling while supporting the material as a foraminous means.

Abstract: A method of processing hydrocolloid adhesive material includes the steps of extruding a sheet of the hydrocolloid adhesive material from a vacuum extruder, applying a liner of release material to at least one side of the sheet, under pressure, and while the sheet is at an elevated temperature and maintaining the liner and the sheet under tension during cooling of the sheet.

Abstract: A novel process for preparing particles of polymer gel prepared by polymerizing an aqueous solution of water-soluble vinyl monomers which comprises breaking the polymer gel into particles with a breaker device wherein the gel is cut into strips by a pair of rollers having a plurality of annular projections or grooves on their surfaces, the rollers rotating in an opposite direction to each other to engage each other and cut off the gel fed between the rollers, and the strips are then cut into particles by a combination of a fixed cutting blade and a rotating cutting blade. The obtained gel particles are further pulverized into fine round or particles spherical in a vertical type cutter comprising at least one vertically fixed cutting blade and a rotary cutting blade arranged rotatably and vertically, a clearance being provided between an edge of the rotary cutting blade and an edge of the fixed blade.

Abstract: A release composition which facilitates the unmolding of bonding materials such as concretes from molds for purposes of pre-fabrication. Methods for facilitating the unmolding of such bonding materials by coating the mold with such release composition, and for casting molded, preformed articles include coating the mold prior to casting in order to facilitate the unmolding operations. The release composition is an aqueous anti-freeze solution containing no petroleum based products. It comprises a combination of at least one active release constituent which may be an organic acid salt, at least one clarifying anti-freeze agent which may be a hydroxyethylether; at least one spreading agent which is an ester; at least one polyether lubricating agent; and water as a solvent medium, in variable proportion according to the desired concentration.

Abstract: A process for producing dried alginate fibre material, in which wet spun insoluble alginate fibres are overlaid in a sheet onto a more slowly moving liquid permeable conveyor and are subjected to a dewatering drying operation, includes special treatment to eliminate or reduce bonding of the overlaid fibres at their points of contact or intersection. This is accomplished preferably by passing the dried sheet or web that is produced through successive pairs of rollers driven at different speeds so as to pull the individual fibres longitudinally and break any existing inter-fibre bonds. Also, prior to and during initial drying of the sheet of wet fibres application thereto of external mechanical forces is avoided and alcohol exchange to remove water may be used. The rollers may advantageously produce a stretch-breaking effect. The alginate fibre material produced is particularly suitable for making up medical or surgical dressings and the like.

Abstract: A method for the release of air bladders during tire construction involves the application of a bladder release composition directly upon the expandable air bladder in the tire production machinery. The bladder release composition typically consists of a blend of siloxanes, which when combined, provide significant air bleed qualities.

Abstract: Apparatus and method for producing semiconductor ribbon directly from the molten state by contact with a moving chill surface wherein water vapor is introduced to improve ribbon top surface smoothness.

Abstract: A reinforced protective housing that may be utilized for protection of electrical contacts; such housing is reinforced with cured resin-coated open mesh glass cloth. Electrical contacts are incorporated into the glass cloth reinforced plastic body to form a unitary electrical connector component. A method of manufacturing cured resin-coated open mesh glass cloth reinforced molded plastic electrical connectors.

Abstract: Enhanced lubricating properties and good heat stability upon processing are imparted to thermoplastic materials such as polyvinyl chloride, polypropylene and acrylonitrile-butadiene-styrene resins by the incorporation therein of a polyglycerol ester of a C.sub.8 to C.sub.22 fatty acid. The ester is characterized by a degree of polymerization ranging from 2 to 8 and a degree of acid substitution ranging from 1 to 10.

Abstract: Proposed is a distance sheeting for construction of molds and models; the sheeting is produced by curing of 100 parts by weight of a mixture consisting of 45-60 parts by weight of an internally plasticized epoxy resin of low epoxide value, 5-10 parts by weight of an external plasticizer and 35-45 parts by weight of a globular-amorphous filler material with 9-13 parts by weight of polyamine curing agent. This distance sheeting is especially suitable as a substitute for the sheetings made of lead or wax which are being used currently for this purpose.

Abstract: Blends of silicone surfactants substantially free of isocyanate reactivity and certain polysiloxane compounds having pendant organic chains which have at least one isocyanate reactive functional group are useful as internal mold release agents. These blends form stable dispersions in liquid polyisocyanates for use in reaction injection molding techniques.

Abstract: The invention provides a process for producing fabric-reinforced, thin concrete panels suitable as a backer board for construction materials such as ceramic tile, slate or thin brick. A process is described whereby the components of the panel are deposited on a web of release-agent-treated, water-absorbent paper while moving on a conveyor belt to form a continuous strip, the strip is cut into panels and the wet, uncured panels are stacked by means of an air-float stacking unit, then subsequently cured with the paper web between adjacent panels.

Abstract: A process for the production of moldings from unsaturated polyester resins wherein a mixture is first prepared from1. an unsaturated polyester,2. a copolymerizable vinyl compound,3. an inhibitor,4. a photoinitiator,5. a thickener, preferably MgO,6. a pulverulent auxiliary which transmits ultraviolet light and/or7. a fibrous reinforcing material and8. further conventional additives.This mixture is thickened, where appropriate after coating onto a sheet-like carrier, to form a semi-finished product, which is then finally shaped, and cured by UV irradiation after which it may or may not be heat-treated.

Abstract: A device for fabricating multi-layer tubing has a reservoir for tubing solution and discharges such solution from an opening in the reservoir bottom. The reservoir is suspended so as to remain level. Extending through the opening is a vertical rod of smaller diameter but itself suspended by a flexible wire so as to remain vertical. Material in the reservoir extrudes as an annulus even in cross-section by passing between the edge of the reservoir opening and the rod. Such extruded material hardens into one layer of the tubing. There is a repetition with a larger reservoir opening and so depositing a larger tube that is dried on and over the first tube. This is repeated as often as desired to get a finished tube of the proper inside and outside diameter.The method is following in succession the steps described above.

Abstract: Small quantities of hydrogenated polybenzyls act as a perfect mould release agent for aromatic polyesters based on diphenols and iso- and/or terephthalic acids and do not appreciably impair the elastic strength characteristics, the dimensional stability under heat and the transparency.

Abstract: A racket frame is made by molding a thermosetting resin composition together with reinforcing fibers. Molds are made of flexible strip members, such as plastics, wood pulp, paper pulp, wood, bamboo, etc., which are bent to form a racket frame in a fitting, thereby reducing the production cost incurred in fabrication of expensive molds. The formed racket frame has no shell and core structure.

Abstract: Method for making a coded, resilient ear plug including forming an impression with wax and release agent, investing the impression, agitating to remove air, hardening the investment and after removal of the impression material casting a hardenable material in the investment cavity.

Abstract: A multi-ply elastomeric belt is produced by tensioning fabric over a lower mold section, elastomeric enveloping said fabric under pressure to form a so called "pulley ply" section, inverting said ply, tensioning at least one fabric member over said ply and elastomerizing the fabric to form at least a belt section, a continuous belt can be made.

Abstract: Method for making a breast prosthesis formed from plasticized polyvinylchloride plastic having coloring, texture, weight and feel closely approximating those of a natural breast. Liquid plastic is heated and tinted with a first portion having a skin tone and a second portion having the darker color of the areola and nipple area. The darker portion is poured into a breast mold to the depth of the desired areola area. This pour is allowed to set until tacky at which time the skin colored portion is poured, which bonds to the first pour. The mold is immediately cooled in a freezer at 5.degree. F. or less. After curing and cooling, the prosthesis is removed from the mold. An alternative embodiment used for teaching self-examination includes small objects embedded in the prosthesis to simulate tumors.

Abstract: Disclosed is a method and apparatus for continuously lubricating cable during continuous dry curing of cable insulation to reduce friction between the cable insulation and the dry curing apparatus, thereby eliminating cable oscillation and vibration to increase product quality and the speed of production.

Abstract: Disclosed is a method for continuously lubricating cable during continuous dry curing of cable insulation and insulation shield to reduce friction between the cable surface and the dry curing apparatus, thereby eliminating cable oscillation and vibration and increasing product quality and the speed of production, comprising coating insulation compound pellets and insulation shield compound pellets with incompatible lubricant immediately prior to extrusion of insulation and insulation shield on to the cable.

Abstract: Incorporation of a polyethoxylated phosphate ester in a film-forming composition containing a cellulose ester dissolved in a solvent medium has been found to promote stripping of the film from the surface on which it is cast. Such use of polyethoxylated phosphate esters as stripping aids is especially advantageous in the manufacture of cellulose ester film base in the photographic industry.

Abstract: A method for spraying compression tools, for example, consisting of upper and lower die and matrix, of machines for the manufacture of molded articles, which comprises applying dissolved, molten or suspended lubricants to the tool surfaces, generally before each compression operation, by means of an intermittently and briefly spraying nozzle system.

Abstract: Disclosed is a release coating provided by a coating composition having an acrylic functional component which has been polymerized by electron beam radiation. In a preferred embodiment the coating composition does not contain polysiloxane. In another preferred embodiment some of the acrylic functional component has one acrylic group per molecule and some has three or more acrylic groups per molecule before polymerization.

Abstract: A method of making a resin panel in which a carrier film receives thereon a layer of thermosetting resin and glass fibers are placed on the resin layer. This composite is inverted and passed between a roller and a section of a moving belt, the belt being of a material impermeable to the resin. The resin layer with glass fibers therein is passed through a heating zone to cure the resin while on the belt. After the resin is cured it may be separated from the belt by bending the belt away from the resin.The machine carries out the above method employing a belt of stainless steel or the like which extends over a pair of rolls to provide a conveyor for the formed resin layer. The machine has a pair of rolls for forming the resin-glass composite. One of these rolls serves to invert the layers and serves also to press the layers against the belt. Heaters are provided to heat the formed resin to cure it while on the belt.

Abstract: A process for simultaneously batch-coating a number of electric components having radial connections wires extending in approximately parallel relation from the element to be covered utilizes a plate having a hole pattern therein for receiving the wires to retain the elements during coating. A synthetic foil is first placed over the plate and the wires are forced through the foil into the holes. A grid having openings therein formed by perpendicular walls for surrounding the elements is placed over the plate for use as a casting mold. A casting resin is deposited over the grid in excess quantity, and is then smoothed by moving a doctor over the grid. After the resin has hardened, the grid is removed and the individual elements, with the resin adhering to the synthetic foil, are separated.

Abstract: The addition of a nickel salt of an omega-[4-hydroxyphenyl]-alkanoic acid having at least two alkyl groups on the phenyl ring to a reaction product of a polyalkyl-substituted 4-hydroxy benzoic acid and a secondary or tertiary organic phosphite results in lubricated polyolefins having enhanced resistance to yellowing.

Abstract: Release agents which are durable when used in the release of sulfur during its processing are claimed. Methods of processing sulfur using the release agents are also claimed. One release agent consists essentially of certain carboxy functional siloxanes, a solvent, and certain titanates. Another release agent consists essentially of a polydimethylsiloxane fluid, a siloxane composed of SiO.sub.2 and (CH.sub.3).sub.3 SiO.sub.1/2 units, a solvent, and a titanate. A third release agent consists essentially of certain carboxy functional siloxanes, a polydimethylsiloxane fluid, a siloxane composed of SiO.sub.2 and (CH.sub.3).sub.3 SiO.sub.1/2 units, a solvent, and certain titanates.

Abstract: A flexible anti-skid material for application to various outdoor and indoor surfaces to produce a long lasting, low-cost, non-skid waterproof surface is formed of a smooth layer of paint adhered to one side of a flexible carrier material and one or more layers of paint each having particles of sand embedded therein adhered to the other side of the flexible carrier material, the anti-skid material being applied to desired surfaces with the use of an adhesive. A method of making the flexible anti-skid material includes coating a hard, smooth substrate with paint, placing a flexible carrier material on the coating of paint, coating the flexible carrier material with paint, distributing sand on the coating of paint, repeating the latter two steps to produce a desired thickness for the anti-skid material, allowing the anti-skid material to dry, and removing the substrate.

Abstract: An aqueous solution suspension or emulsion containing a water-soluble or oil-soluble non-ionic emulsifying agent is useful, when spread over the load-bearing surface of a conveyor carrying bituminous sands, to act as a release agent to promote the clean separation of the tacky sands from the belt when the latter rounds the end roller of the conveyor system and unloads the sands.

Abstract: A method of releasing molded articles from a mold by coating the mold with zero grain soft water prior to insertion of the material to be molded into the mold, zero grain soft water meaning the substantially total absence of divalent ions, such as calcium or magnesium, in the water.